tadpole: Add WHIB backend

flake.nix

@@ -71,16 +71,21 @@
           ];
         };
 
-        tadpole = inputs.nixpkgs.lib.nixosSystem {
-          system = "x86_64-linux";
-          specialArgs = {
-            inherit inputs;
+        tadpole =
+          let
+            system = "x86_64-linux";
+          in
+          inputs.nixpkgs.lib.nixosSystem {
+            inherit system;
+            specialArgs = {
+              inherit inputs;
+            };
+            modules = [
+              ./hosts/tadpole/configuration.nix
+              ./hosts/tadpole/home.nix
+              inputs.whib-backend.nixosModules.${system}.default
+            ];
           };
-          modules = [
-            ./hosts/tadpole/configuration.nix
-            ./hosts/tadpole/home.nix
-          ];
-        };
 
         test-vm =
           let